If you try to steam them out, BE VERY CAREFUL!!!!
As Rich said, you don't want to add burns.
This works well if done correctly (I burned myself the first time doing this, but that was because I mistook the wrong end of the iron for the handle, thankfully it was only a 25 watt iron on a v-regulator set at 60v, still hot as hell though
) but you couldn't tell where the dent was in the back of the neck when I was finished. :-)
Personally, any dent or scratch or chip that doesn't effect the way my guitar plays stays put, they are going to happen and once you get past the first one the rest are just "oh well". :-)
Just my opinion, and remember, opinions are like an anus, everyone has one and they are often full of . . . .